EU Citizenship by Descent: The Complete Guide to Reclaiming Your European Passport

For readers with European heritage, citizenship by descent (jus sanguinis) is the most cost-effective and powerful route to an EU passport. Unlike Golden Visa or citizenship-by-investment programmes — which typically require investments of EUR 250,000 to EUR 2.5 million — descent claims are based on bloodline and usually cost only legal fees, document gathering, and government processing charges.

This guide explains how the major EU descent programmes work, who qualifies, what documents are required, realistic timelines, and how to choose between competing claims when you have ancestry in more than one country.

Why citizenship by descent matters

An EU passport unlocks the right to live, work, study, and retire in any of the 27 EU member states, plus Iceland, Liechtenstein, Norway, and Switzerland under EEA/EFTA agreements. It is one of the most valuable legal statuses in the world for personal mobility, family security, and intergenerational wealth planning.

Compared to investment migration:

• Cost: Descent claims typically cost EUR 3,000 to EUR 30,000 in legal, translation, and apostille fees. Investment routes start at EUR 250,000 (Greece) and reach EUR 2.5 million (Malta).
• Permanence: A descent claim, once granted, is irrevocable in most jurisdictions. Citizenship by investment can be revoked if due-diligence findings change.
• Inheritability: Children and grandchildren born after the claim is recognised automatically inherit citizenship.
• Tax neutrality: Acquiring citizenship by descent does not, by itself, create tax residency. You remain taxed where you live.

Italy: the most generous programme

Italy recognises descent through the male and female lines with no generational limit, provided the chain is unbroken. This makes Italian citizenship the most accessible of the major EU programmes for the global Italian diaspora — particularly in the Americas.

Eligibility rules

You generally qualify if:

• Your Italian ancestor was alive and an Italian citizen on or after 17 March 1861 (the date of Italian unification).
• The ancestor did not naturalise in another country before the birth of the next person in your line, OR naturalised after 15 August 1992 (when Italy began permitting dual citizenship).
• For claims through the maternal line, the next-in-line descendant must have been born on or after 1 January 1948 (the "1948 rule"), reflecting constitutional equality provisions.

Important 2024–2025 reforms

In March 2025, the Italian government introduced new restrictions limiting jus sanguinis claims to two generations (parents and grandparents) for applications filed after the reform date. Pending applications and those filed before the cut-off are generally protected. Anyone with a credible Italian-descent claim should act quickly and consult a specialist Italian citizenship lawyer to confirm current eligibility.

Process and timeline

Two routes exist:

1. Consular application: Filed at the Italian consulate with jurisdiction over your country of residence. Wait times for appointments range from 18 months to 8 years depending on the consulate (Buenos Aires and São Paulo are notoriously backlogged).

2. In-Italy application (residency route): You establish residency in an Italian comune, file directly, and typically receive recognition within 6–12 months.

3. Judicial route: For maternal-line claims pre-1948 or where the consulate refuses to act, you can sue the Italian state in Rome. This typically resolves within 18–36 months.

Costs range from EUR 3,000 (DIY consular) to EUR 25,000+ (judicial route with specialist counsel).

For the official source, consult the Italian Ministry of Foreign Affairs (esteri.it).

Ireland: through grandparents and beyond

Ireland offers a clear, well-documented descent programme administered by the Department of Foreign Affairs (dfa.ie).

Eligibility

• If a parent was born in Ireland, you are an Irish citizen by birth — simply apply for the passport with their birth certificate.
• If a grandparent was born in Ireland, you can register on the Foreign Births Register and become an Irish citizen.
• Great-grandparent descent is possible only if your parent registered on the Foreign Births Register before your birth.

Process and timeline

The Foreign Births Register application is filed online with the Department of Foreign Affairs in Dublin. Processing currently takes 9–18 months. After registration, you apply for an Irish passport separately. Total cost is typically EUR 500–EUR 2,000 depending on document procurement.

Ireland is unusually generous because it freely permits dual and multiple citizenship and has no residency or language requirements for descent claims.

Poland: confirmation of Polish citizenship

Poland uses a "confirmation" rather than "acquisition" framework: if your ancestor was a Polish citizen and never lost that citizenship under Polish law, you are already a Polish citizen by descent — the process simply confirms what already exists.

Eligibility

You generally qualify if:

• An ancestor was a Polish citizen on or after 1920 (when modern Polish citizenship law was first codified).
• The chain of citizenship was never broken by formal renunciation or, prior to 1951, by foreign military service or naturalisation.
• Special attention is needed for Jewish ancestors who emigrated 1918–1968, as several historical statutes affected their status.

Process

Applications are filed with the Voivodeship Office (Urząd Wojewódzki) of Mazowsze in Warsaw. With complete documentation, confirmation typically takes 12–24 months. Once confirmed, you receive a poświadczenie (confirmation certificate) and can apply for a Polish passport at any consulate.

For official guidance, see the Polish Ministry of Interior and Administration.

Lithuania: post-2023 expansion

Following 2023 legislative changes, Lithuania has expanded descent rights to descendants of citizens who left between 1918 and 1940, addressing historical injustices affecting Lithuanian Jewish and ethnic communities. Multiple citizenship is now permitted for descent claimants in most circumstances.

Germany: restitution and standard descent

Germany offers two tracks:

1. Standard descent (§ 4 StAG): For children born to a German parent. Limited generational reach.
2. § 15 StAG restitution: For descendants of persons persecuted by the Nazi regime (1933–1945) who lost German citizenship. This route, expanded in August 2021, is one of the most accessible restitution programmes in Europe and has no generational limit for the persecuted line. Administered by the Federal Office of Administration (Bundesverwaltungsamt).

Other notable programmes

• Hungary: Simplified naturalisation for descendants who speak Hungarian. No residency required.
• Portugal: Descent through grandparents available, with a Portuguese-language requirement.
• Spain: Sephardic Jewish descent programme closed in 2019, but standard descent through parents remains available.
• Greece: Descent through Greek-born grandparents, with documentation through Greek municipal records.

Frequently asked questions

How long does EU citizenship by descent take?

Most programmes take 9–36 months from filing to passport in hand. Italian consular claims can take 8+ years; the in-Italy residency route compresses this to 6–12 months.

Do I need to give up my current citizenship?

No. Italy, Ireland, Poland, Lithuania, Hungary, and post-2007 Germany all permit dual citizenship for descent claimants. Always verify with your home country's laws — Austria, for example, does not permit voluntary dual citizenship.

Will EU citizenship affect my taxes?

Citizenship alone does not create tax residency. You remain taxed where you live. However, EU citizenship may simplify relocation if you later choose to establish tax residency in a more favourable jurisdiction.

Can I pass EU citizenship to my children?

Yes. In all the programmes above, children born after recognition automatically inherit citizenship. Children born before recognition can typically be added retroactively.

What documents will I need?

Generally: birth, marriage, death, and naturalisation records for every person in the chain from your qualifying ancestor to you, with apostilles and certified translations. Document gathering is the longest and most expensive part of the process.

How does this compare to a Golden Visa?

For those with eligible ancestry, descent is dramatically cheaper (EUR 5,000–EUR 30,000 versus EUR 250,000–EUR 2,500,000) and grants full citizenship rather than residency. The trade-off is timeline: investment programmes can deliver residency in months, whereas descent claims take 1–3 years on average.

Next steps

1. Map your lineage: Identify your qualifying ancestor and confirm their citizenship status at the relevant dates.
2. Gather documents: Birth, marriage, and naturalisation records for every link in the chain.
3. Consult a specialist: Citizenship-by-descent law is technical and country-specific. Engage a qualified immigration lawyer in the relevant jurisdiction.
4. File and follow up: Track your application proactively; embassy backlogs and document requests are common.

For readers without eligible ancestry, Golden Visa programmes remain the most efficient path to European residency, and citizenship by investment offers a faster route to a passport.

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This guide is informational only and does not constitute legal advice. Citizenship law is complex and country-specific; always consult a qualified immigration lawyer before filing. Last reviewed: June 2026.